This is a re-placement set of 4 terminal nuts for Lionel transformers. They fit most Lionel Pre-war transformers, including "V", "Z", & Post war "ZW", "KW" & "TW" .
This is for one (1) reproduction V-117 large knob assembly with spring clip used on the Lionel "V" & "T" Train-Master transformers
Z-22 ZW Transformer Replacement Circuit Breaker
Old style circuit breaker for early Lionel ZW Transformers.